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DM74LS257BM中文資料仙童半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書
| 廠商型號(hào) |
DM74LS257BM |
| 功能描述 | 3-STATE Quad 2-Data Selectors/Multiplexers |
| 文件大小 |
56.55 Kbytes |
| 頁面數(shù)量 |
5 頁 |
| 生產(chǎn)廠商 | Fairchild Semiconductor |
| 企業(yè)簡(jiǎn)稱 |
Fairchild【仙童半導(dǎo)體】 |
| 中文名稱 | 飛兆/仙童半導(dǎo)體公司官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-5-5 23:00:00 |
| 人工找貨 | DM74LS257BM價(jià)格和庫存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
DM74LS257BM規(guī)格書詳情
General Description
These Schottky-clamped high-performance multiplexers feature 3-STATE outputs that can interface directly with data lines of bus-organized systems. With all but one of the common outputs disabled (at a high impedance state), the low impedance of the single enabled output will drive the bus line to a HIGH or LOW logic level. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output enable circuitry is designed such that the output disable times are shorter than the output enable times.
Features
■ 3-STATE versions LS157 and LS158 with same pinouts
■ Schottky-clamped for significant improvement in A-C performance
■ Provides bus interface from multiple sources in high-performance systems
■ Average propagation delay from data input 12 ns
■ Typical power dissipation: 50 mW
產(chǎn)品屬性
- 型號(hào)：
DM74LS257BM
- 功能描述：
編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Data Sel/Mul
- RoHS：
否
- 制造商：
Micrel
- 產(chǎn)品：
Multiplexers
- 邏輯系列：
CMOS
- 線路數(shù)量（輸入/輸出）：
2/12
- 傳播延遲時(shí)間：
350 ps, 400 ps
- 電源電壓-最大：
2.625 V, 3.6 V
- 電源電壓-最?。?/span>
2.375 V, 3 V
- 最大工作溫度：
+ 85 C
- 安裝風(fēng)格：
SMD/SMT
- 封裝/箱體：
QFN-44
- 封裝：
Tray
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
TI/德州儀器 |
24+ |
NA/ |
3270 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
FAIRCHILD |
23+ |
DIP |
9526 |
詢價(jià) | |||
FAIRCHILD |
2018+ |
DIP16 |
11256 |
只做進(jìn)口原裝正品!假一賠十! |
詢價(jià) | ||
FSC |
03+ |
SOP-16 |
3800 |
一級(jí)代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價(jià) | ||
NAT |
2015+ |
SOP |
19889 |
一級(jí)代理原裝現(xiàn)貨,特價(jià)熱賣! |
詢價(jià) | ||
FSC |
21+ |
SOP-16 |
3800 |
原裝現(xiàn)貨假一賠十 |
詢價(jià) | ||
NS/國半 |
25+ |
NA |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
NSC |
23+ |
原裝原封 |
8888 |
專做原裝正品,假一罰百! |
詢價(jià) | ||
FAIRCHIL |
23+ |
DIP |
4500 |
全新原裝、誠信經(jīng)營(yíng)、公司現(xiàn)貨銷售 |
詢價(jià) | ||
FAIRCHILD |
24+ |
DIP |
98 |
詢價(jià) |
